Cavity Fill Insulation: 19th October 2010

B. Balls have been doing a lot of the stripping out in the kitchen and more destructive work.

What has become apparent is that the cavity insulation is poor, and patchy. While working in the kitchen Matthew has found the insulation only fills the cavity to a level 1meter from floor level.

Question is how critical is the cavity fill to your calculations because:

- Topping up the insulation is complicated, in part because of the amoun required and the existing insulation apparently has the potential for reacting with new mineral blown insulation.

- The insulation companies which have been contacted will not blow insulation into the cavity of a steel framed building because of the potential for the boarding on the inside to pop and break up.

- Not only that but now we are pondering the possibility of condensation forming around the steel structure.

=> Omitting the cavity wall insulation from the PHPP calcualtions actually made no difference to the final primary energy value and CO2 emissions.